Handled folding rule.



P. NEUKIRGHEN.

HANDLED FOLDING RULE.

APPLICATION FILED MAY 29,1913.

Patented May 19, 1914,

mum MIAMI ,WW I.-

PETER NEUKIRCHEN, OF CHICAGO, ILLINOIS.

HANDLED FOLDING RULE.

To all whom it may concern:

Be it known that I, PETER NEUKIROHEN, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Handled Folding Rules, of which the following is declared to be a full, clear, and exact description.

This invention relates to drawing instruments, and has for its principal object to provide a simple, cheap and efficient instrument having combined therein, a tubular handle, foldable rule sections arranged to be slid into said handle or withdrawn therefrom to form a twelve inch rule, a pencil and a knife supported in said tubular handle, and either capable of being slid out through the open end of said tubular handle, for use.

The invention consists in the several novel features of construction, arrangement and combination of parts hereinafter fully set forth and claimed.

The invention is clearly illustrated in the drawing furnished herewith, of which- Figure 1, is a side view of a drawing instrument embodying the one form of the present invention, showing the rule extended; Fig. 2, is a side view of the instrument looking at the side opposite to that viewed in Fig. l, but showing the rule slid into the handle, and the knife blade extended to a position ready for use; Fig. 3, is a longitudinal section taken on the line 3-3 of Fig. 2; Fig. 4, is a longitudinal section taken on the line 4-4 of Fig. 3, and showing the rule in a partly extended position; Fig. 5, is a detail, cross section taken on the line 55 of Fig. 3, Fig. 6, is a detail, cross section taken on the line 66 of Fig. 4, the handle being omitted, Fig. 7, is a detail, cross section taken on the line 77 of Fig. 1, and Fig. 8, is a detail longitudinal section taken on the line 8-8 of Fig. 4.

Referring to said drawing, 10, designates a tubular handle open at both ends, and having a longitudinally extending, centrally located partition 11, secured thereto in any suitable manner, as for instance by soldering it to the handle. The partition is shown as formed with marginal flanges 12, that bear against the inner wall of the tubular handle, and said flanges may be soldered to .the handle. Said partition is formed with a longitudinally extending slot 13, through which extends a rivet 14, for slid- Specification of Letters Patent.

Application filed May 29, 1913.

Patented May 19, 1914. Serial No. 770,591.

ably connecting the foldable rule sections with the partition. As shown, the rule comprises four sections 15, 16, 17 18, which are marked with linear divisions, and the sections 16, 17, are pivoted together, as at 19,

length that when the foldable sect-ions of I the rule have been fully extended, the divisions on the handle 10, and foldable sections of the rule form. a continuous twelve inch scale,

Slidably mounted within the handle, on the side of the partition 11, opposite the side containing the foldable section of the rule, is a knife and pencil holder 21, which supports a pencil 22, at one end, and a knife blade 23, at its other end. Said knife and pencil holder fits within that half of the tubular handle on one side of the partition l1, and has a knob 24, secured to it, which extends out through a longitudinally extending slot 25, in the tubular handle, said knob furnishing means whereby the pencil and knife support may be shifted back and forth to bring the pencil into operative position beyond one open end of the handle and the knife beyond the other open end thereof. The knob 24, is formed on the end of a headed stem, which extends through the pencil and knife holder 21, and is headed on the inner side thereof,,as seen in Fig. 7.

A hole 26, is formed in the tubular handle at some point diametrically opposite the slot 25, for the insertion of a tool in heading or upsetting the inner end of the stem of the knob 24. One end of the tubular handle is formed with a notch 10*, and the end section 18, of the rule, is formed with a bent end 18, to facilitate the withdrawal of the foldable sections of the rule.

Preferably the rule section 16, is struck up near the rivet 14, to form projections 30, and the partition 11, is likewise struck up at points near the ends of the slot 13, to form sockets or depressions 31, 32, which are arranged to receive the projections of the rule section, when at the limits of its extended or retracted position, thereby forming a lock between the rule sections and handle to prevent accidental relative movement therebetween.

The instrument is exceedingly cheap, simple in construction, and yet very useful, since it'combines many tools that may be contained in a small compass, making the instrument easy to carry about in a persons pocket.

More or less variation of the exact details of construction is possible without departing from the spirit of this invention,and I do not, therefore, desire to limit myself to the exact construction shown and described, except as may be necessitated by the prior state of the art.

I claim as new and desire to secure by Letters Patent:

1. A handled folding rule, comprising a tubular handle having a longitudinally slotted, centrally located partition, rule sections pivoted together and slidably connected to Said longitudinally slotted partition.

I 2. A liandled'folding rule, comprising a tubular handle, a longitudinally slotted partition, centrally located therein, a plurality of rule sections pivoted together, and a slidable connection between one of said foldable rule sections and the slotted partition, said tubular handle and foldable rule sections bearing linear divisions extending from end to end.

3. In a handled folding rule, a handle having a longitudinally slotted partition secured therein, said partition being formed with depressions near the ends of the slot,

and foldable rule sections, pivoted together,

CHARLES O. SHERVEY, NnLs J. HoLTnR.

' Copies of this patent ma; be obtained for five cents each, by addressing the "Commissioner of Iatencs,

. Washington, D. G. 

